Bung-bushing.



mnu /2 A. G. KAUPMAN.

BUNG RUSHING.

APPLICATION FILED NOV. 9, 1912.

Patented Feb. 3,'1914@ ADOLPI-I Gr. KAUFMAN, OF NEW YORK, N. Y.

Specification of Letters Patent.

Patented Feb. 3,1914.

Application filed November 9, 1912. Serial No. 730,522.

To all whom it may concern Be it known that I, ADoLPH G. KAUFMAN,

a citizen of the United States, residing at New York, in the county and State of New York, have invented a new and useful Bunghushing, of which the following isa specification.

This invention relates to closures for barrels, and especially to that class used to close the bung opening when the barrel isempty, or filled andnot being emptied: and the object of my invention is to provide a device of this kind which will be easy to operate, cheap to manufacture, and which will be perfectly tight at all times against the escape of liquid or gasV and against the entrance of dirt within the working parts; a further object being to provide a device of this kind which will be compact in form and so constructed that revenue stamps, oir the like, can be readily pasted over the bushing to seal the same.

The invention is illustrated in the accompanying drawing, in which- Figure 1, is a top plan view of a bung bushing constructed according to my invention; Fig. 2, is a central vertical section of the same and a partial elevation of the tapping device, with parts broken away,the sectional parts being on the line 2-2 of Fig. 3; Fig. 3, is a sectional, and plan viewon the line 3 3 of Fig. 2; Fig. 4, is a sectional view of a part of the bung bushing, on the same sectional line as Fig. 2, but showing a modified form of construction; and Fig. 5, is a plan view of a part used in the construction shown in Fig. 4.

In the accompanying drawing like numerals of reference refer to the same parts in each of the views.

In practice I provide a casing, or bushing 7, having an external screw-thread 8, whereby it may be screwed into the bung opening of a barrel, or keg, as will be understood; and the casing 7, is cup-shaped in form,`and is provided with a vflat bottom 9, forming the inner surface of the base 10, which is of considerable thickness, as shown, and is preferably provided with a flat outer surface; and the base 10, is pierced eccentrically to form an opening 11, through which may be passed the tube 12, of a tapping apparatus which is smaller externally than the opening 11, so as to leave an annular space between them. Within the base 10, above the opening and concentric therewith is formed a circular recess or pocket 13, in which is mounted an annular packing member whose height is normally greater than the depth of said recess, as seen in Fig. 2. This packing is made in two parts or members whose specific construction and relative arrangement and disposition I consider important in this connection and will therefore describe in considerable detail. What might be called the upper and inner part is a metal ring 14,

whose periphery lits closely within the wall of the recess 13, who-se bore constitutes the bore of the two-part packing, whose upper end is fiat and adapted to be held normally elevated abo-ve the flat bottom of the bushing 7, and in firm contact with the lower face of the plug yet to be described, and whose lower end is recessed or cut away on its outer edgeto form an annular chamber of rectangular cross section and to leave a thin annular wall or skirt 14a, depending from its inner edge around its bore, as shown. Y

What might be called the lower and outer part of the two-partpacking is an elastic cushion or ring 15, made of rubber or like material and of rectangular cross section, and whose dimensions are such that it closely fills the space laterally between said skirt and the wall of the recess 13, and is a little thicker vertically than the corresponding dimensions of said annular chamber so that normally it projects slightly below the lower edge of the skirt as seen, but not far enough to permit the liquid in the barrel to have much contact with the rubber.

Fitting closely but rotatably within the wall of the casing of therbushing 7, is a plug 16, whose flat and rather thick body is pierced with an upright eccentric opening 17, adapted to register with the opening 11, and, hence, jwith the bore Vin said packing when the parts are in the position shown in Figs. 2, and 3; and the plug 16, may be ro tated to bring the opening 17, out of register with the opening 11, as shown in Fig. 1, at which time the barrel, or keg will be closed in an air-tight manner as will be understood. The rotatable plug 16, is held within the casing of the bushing 7, in tight but, as the latter is contained withinV the annula-r chamber above described, it can not expand in any direction and interfere with the successful operation of the entire device. Its compression, however, serves two purposes: It reliably prevents the escape of liquid around the exterior of the metal ring 14, and it holds the latter in firm and close contact with the lower face of the plug 16, and prevents the escape of liquid between these parts. As the plug is turned (by means yet to be described) around a center eccentric to the axis of the packing, the surface of the plug moves across the latter and there is no tendency for the plug in turning to turn the ring 14, upon the rubber and hence to distort the same. Setting the ring 18, merely depresses the plug 16, evenly at all points so that its lower face approaches the bottom of the casino' while remaining always strictly horizonta or parallel with the bottom, and the metal ring 14, is thereby pressed straight downward within the recess 13, and the rubber ring is compressed without torsion or distortion in any direction.

In order to insure the perfect working of the parts just described I provide a protecting device 19, comprising a flat annular Y ring which is interposed between the screwthreaded ring 18, and the Hat surface 21, of the plug 16; and this device is provided with a tongue 22, adapted to cover the opening 17, in the plug 16, when the plug is rotated to the position shown in Fig. 1, out of alinement with the opening 11, in the bottom of the bushing casing. As previously stated when the parts are in the position sho-wn in Fig. 1, the barrel or keg is sealed; and it is then desirable that no dirt should be allowed to enter the opening 17 for in rotating the plug back to the tapping position this dirt would be carried back to contact with the parts of the packing ring, and would be objectionable if not detrimental. In order to insure the accurate working of this part I provide the device with a lug 23, adapted to fit in a vertical groove 24, in the inner wall of the casing whereby the rotation of the device with the plug is prevented, and the tongue 22, will always be held in the right position to close the opening 17, when the barrel or keg is sealed. As this protecting device is fiat, and the upper surface of the plug 16, is flat, the device can readily be interposed between the plug and the holding ring 18, without in any manner interfering with the working of the parts as described above.

Only a part of the tapping device is shown in connection with the bung bushing. As shown, in addition to the tube 12, previously referred to, I use a spigot of special construction so far as connecting with the bung bushing and operation is concerned. To carry out my plan of making a simple ylock under the inclined ribs 32,-these parts being so proportioned that the locking will take place at the time the plug 16, has been rotated sufiiciently to bring the opening 17 therethrough into alinement or register with the opening 11, in the base. As shown, the passageways 30, and 31, are of different size thereby indicating that the lugs 29, may differ in size to insure the insertion of the spigot in the right position so that the projection 33, on the disk 26, will enter the recess 34, in the top 35, of the plug 16,-this projection being shown in position, in section, in Fig. 1, and form the connection between the plug and the spigot for the rotation of the plug.

The plug 16, is provided, as just stated, with the top 35, of a size to substantially fill the top of the cup-shaped casing 7, and substantially flush with the top of the same so that when the barrel or keg is being shipped the top 35, will support a revenue stamp, or like device pasted over the bung bushing, as will be understood. In making the plug, as the top plate 35, is held at some distance from the plug proper in order that the said top will be flush with the top of the bushing casing, I connect this top with the plug 16, by a stem 36, sufliciently large to permit the partial inclosure of the, recess 34, passing through the top 35, of the plug, as indicated in dotted lines in Fig. 1. In addition to the recess 34, the top 35, is perforated or cut by a passageway 37 ,i through which may be passed the tongue 22, of the protecting device 19. This passageway provides an engaging surface which may be engaged by a chisel, or other tool in anattempt to open the barrel or keg by other means than the spigot, but such attempt would be mo-re likely to break off the top 35, than to rotate the plug thereby preventing the opening of the barrel in other than the right way.

The operation will be clear when taken in connection with the foregoing description and accompanying drawing. It will be understood that thepbung bushingis mounted in the bung opening of a barrel or keg, which may be lilled through another bung hole, or the plug may be rotated to allow the openings 17, and 11, to register, when the barrel could be iilled through the bung bushing. Ihen it is desired to draw off the contents the spigot is connected with the bung bushing by passing the lugs 29, through the passageways 30, and 31, in the required position to have the projection 33, enter the recess 34, in the plug top; then by partially rotating the spigot the lugs 29, will travel along the inclined ways 32, until the gasket 28, is tightly compressed between the spigot disk and the top of the bushing, at which time the openings 17, in theplug and 11, in the bushing casing will be in alinement, or register, when the tube 12, may be passed down through the spigot 25, into the barrel, and secured in position so that gas may not escape from the top of the spigot. Then by turning gas or compressed air into the barrel through the tube 3S, and tube 39, through the space 40, between the tube 12, and the walls of the tube 40 the contents can be forced out. I prefer to make the bottom of the opening 11, flaring, as shown at 41, so that in entering the barrel the gas or air will spread out over the surface and exert an even pressure on the same to force the contained liquid out through the tube 12, to the point desired without foaming.

By makin@ the plug and packing as shown, a tight connection between the plug and gasket ring, or packing ring 14, is always assured with ample allowance for wear, and a tight connection is also made around the metal part of the ring 14. Then, too, since the ring 14, is held elastically against the sliding surface of the plug, a tight connection is made without requiring the accurate fitting of other kinds of packing, and yet no rubber comes in contact with the plug. This insures cheapness in manufacture, ease, and satisfaction in work, and efliciency.

In Figs. 4 and 5, I have shown a modified form of construction in which the plug 1Q', is made up of a disk, or plate 42, and an upper part 43. The disk 42, is preferably provided with projections 44, adapted to enter correspondingrecesses 45, in the upper part. This obviates the necessity of securing the parts together for after the plug is secured in place by the screw-threaded ring 18, with the intervening protecting device 19, the part 42, will be compelled to rotate in contact with the packing ring 14, and all the other parts will operate as described above relative to the preferred form. The advantage of this construction lies in the fact that the disk 42, may be made of brass while the other parts of the plug may be made of steel, or other less expensive metal and I am thus enabled to use brass where necessary to make tight connections and yet provide a very cheap bung bushing.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is-

1. In a bung bushing, the combination with a cup-shaped casing having a flat bottom provided with an eccentricrecess and a reduced opening through the lower end of the recess, and a packing within said recess comprising a metallic ring whose upper end fits closely therein and rises normally above said flat bottom and whose lower end is cut away on the outer edge to form an annular chamber outside a depending skirt surrounding its bore and a rubber ring filling said chamber and depending below said skirt; of a plug within said casing having an ofi'- center opening adapted to be brought into register with that in the packing, means within the casing for depressing the plug, and means for rotating the latter in grinding contact with the Lipper end of said ring, all of said parts lying wholly within said casing for the purpose set forth.

2. In a bung bushing, the combination with a. casing having a flat bottom provided with a recess pierced through its bottom with a reduced opening concentric with said recess, an expansive ring fitted in the lower portion of said recess around its opening, and a metallic ring fitting in the upper portion of the recess, having a skirt around its bore depending through the eX- pansive ring, and having the upper end of its body fiat and rising normally above the bottom of said casing; of a member within said casing having an opening through it, means for depressing this member, and means for moving it in grinding contact with the upper end of said metallic ring to bring its opening into register with that through said rings, all of said parts lying wholly within said casing.

3. In a bung bushing, the combination with a cup-shaped casing internally threaded near its mouth and having an opening disposed eccentrically through its bottom, and a plug having a flat body rotatablyl mounted within said casing below its threads and pierced with an opening adapted to be brought into register with that in the casing; of a ring above said body engaging said threads, and a fiat ring having an internal integral tongue adapted to cover the opening in said plug when at the opposite side from the opening in said casing, for the purpose set forth.

4. In a bung bushing, the combination with a cup-shaped casing having an opening disposed eccentrically through its bottom, and internal inclined ribs around its mouth, and a plug having a flat body rotatably mounted within said casing below its ribs and pierced at one side of its center with an opening adapted to be brought into register with that in the casing, the body having a portion arising from the side thereof opposite to said opening adapted to be engaged by a spigot and ending in a fiat top on a plane with the top of said casing; of a spigot having a disk with an engaging point adapted to enter a portion of the top of said plug, inclined lugs on said disk so disposed as to engage said ribs and bind beneath them when the alined openings are brought into register, and a packing between said spigot disk and casing.

5. In a bung bushing, a cup-shaped casing with a flat bottom having a recessed, eccentric opening, a two-part packing ring mounted in said recessed opening, the upper and inner part of said packing being of brass, and a plug rotatably mounted in said casing and having an eccentric opening adapted to be brought into register with the opening' through said bottom, the bottom of said plug being of brass adapted to move in grinding contact with the brass part of said packing ring, all of said parts lying wholly within said casing, for the purpose set forth.

6. In a bung bushing, a cup-shaped casing with a flat bottom having' a recessed, eccentric opening, a two-part packing ring mounted in said recessed opening, the upper and inner part of said packing ring being of brass, and a plug rotatably mounted in said casing and having an eccentric opening adapted to be brought into register with the opening through said bottom, the bottom of said plug being of brass adapted to move in grinding contact with the brass part of said packing ring, said plug having a superstructru'e with a Socket adapted to be engaged by a spigot, and having a iiat top adapted to lie flush with the top of said casing, for the purpose set forth.

7. In a bung bushing having a casing with an eccentric recessed opening, a rotatable plug having' an eccentrically-located passageway adapted to be brought into register with the opening in Said casing, and a packing ring mounted in said recessed opening and adapted to contact with said plug, said packing ring comprising a cylindrical part adapted to engage said plug and make a tight, slidable joint therewith, and having a recessed outer lower edge, and an elastic part mounted in the recessed portion of said cylindrical part and adapted to elastically hold the same in contact with said plug and at the same time make a tight joint between said cylindrical part and the walls ot said recessed opening, all of said parts lying wholly within said casing for the purpose set forth. Y

Dated this Sth day of l\Tovember,-l9l2.Y

ADOLPH G. KAUFMN. Vitnesses A E. A. WEST, G. P. VAN VYE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

